Bird-Keeping Adventures – Caring for a Pel’s Fishing Owl

Today I’d like to my shift focus from pet trade birds and introduce you to a species I’ve worked with for many years, the Pel’s Fishing Owl, Scotopelia peli. One individual under my care at the Bronx Zoo lived into his 50’s, and provided me with insights into the owl-world’s most uniquely adapted predator.

Owl Diversity: Bug Hunters to Deer-Slayers

It seems that the various species of owls are viewed by most folks as “variations on a theme” – mysterious, nocturnal birds that feed upon rodents and vanish by day. But within the owl family (Strigiformes) we find an incredible diversity of lifestyles – sparrow-sized Elf Owls that nest in cacti and hunt insects, Great Horned Owls that stalk cats in NYC and parrots in Costa Rica, massive Eagle Owls capable of taking deer fawns, day-flying Hawk Owls…the list goes on. Among the most unique are those that specialize in hunting fishes, known collectively as Fish or Fishing Owls.

I first made their acquaintance when I began working at the Bronx Zoo. As a licensed wildlife rehabilitator, I had previously cared for injured and abandoned Barn, Great Horned, Saw Whet and Screech Owls, but Fishing Owls opened a whole new field of interest for me.

Fishing Owl Natural History

The Fishing Owl’s unique diet has fostered new (in the owl world) adaptations, and they have shed others that are not needed. Unlike other owls, their legs and toes are un-feathered (so as to dry faster) and spiked scales, which aid in grasping slippery fishes, line the undersides of the toes. Typical owls hear very well, and their flight feathers have soft edges that muffle sound…we do not find these adaptations in Fishing Owls, as fishes and Fishing Owls cannot hear one another.

The Pel’s Fishing Owl, Africa’s largest, occupies a huge range stretching from Senegal in the west clear across the continent to Somalia and south to Namibia and South Africa. It is, however, threatened by dams (which impact fish populations), commercial fishing and the loss of the hollow-bearing trees in which it nests.

The Pel’s Fishing Owl is listed on CITES Appendix II and is considered critically endangered in Namibia and vulnerable in South Africa.

Fishing Frigid Waters

Other Fishing Owls are more limited in distribution, and likely highly endangered. The huge Blakiston’s Fishing Owl, Ketupa blakistoni, for example, is restricted to Siberia, northeastern China and Hokkaido, in northern Japan (please see photo). Supplementary feeding and nest-box installation helps the tiny Japanese population hold on, but its prospects are bleak elsewhere.

Stealing Fish for my Favorite Owl

The Pel’s Fishing Owl mentioned in the introduction above was about 30 years old when I made his acquaintance, and had been living on a diet of mice for most of that time (please see drawing). While mice provided all the nutrition he needed, I couldn’t resist adding a bit of variety.

I began pilfering live trout from the Reptile Department (this expensive food item was reserved for the rare crocodilians known as Gharials, so I operated in secrecy at first). His enthusiastic reaction encouraged me, and soon fresh fish and crayfishes were added to his “official” diet (wild Fishing Owls also take frogs, large insects, crabs, small snakes and hatchling crocodiles).

Thanks for your interest in our blog; glad you enjoyed. Fishing owls are found only in Asia and Africa; Great Grey and Great horned Owls in the US will take fish when easily available, i.e dead salmon, shad, but have no special adaptations. Almost nothing has been done in the way of filming; but there is a wonderful segment on the Blakiston’s Fishing Owl in the show “Wild Russia” – one of a kind footage. You can view it here.

Please let me know if you need any further information. Good luck, enjoy and please keep me posted.

Best regards, Frank Indiviglio.

About Frank Indiviglio

I believe that I was born with an intense interest in animals, as neither I nor any of my family can recall a time when I was not fascinated by creatures large and small. One might imagine this to be an unfortunate set of circumstances for a person born and raised in the Bronx, but, in actuality, quite the opposite was true. Most importantly, my family encouraged both my interest and the extensive menagerie that sprung from it. My mother and grandmother somehow found ways to cope with the skunks, flying squirrels, octopus, caimans and countless other odd creatures that routinely arrived un-announced at our front door. Assisting in hand-feeding hatchling praying mantises and in eradicating hoards of mosquitoes (I once thought I had discovered “fresh-water brine shrimp” and stocked my tanks with thousands of mosquito larvae!) became second nature to them. My mother went on to become a serious naturalist, and has helped thousands learn about wildlife in her 16 years as a volunteer at the Bronx Zoo. My grandfather actively conspired in my zoo-buildings efforts, regularly appearing with chipmunks, boa constrictors, turtles rescued from the Fulton Fish Market and, especially, unusual marine creatures. It was his passion for seahorses that led me to write a book about them years later.
Thank you very much, for a complete biography of my experience click
here.

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